html, body {
    margin: 0;
    padding: 0;
}
.chat-app {
    padding-bottom: 50px;
}
.output {
    margin: 30px auto;
    width: 80%;
    border: 1px solid coral;
    padding: 20px;
    border-radius: 6px;
    padding-bottom: 50px;
    position: relative;
}

.input-bar {
    height: 50px;
    background: #eee;
    position: fixed;
    bottom: 0;
    width: 100%;
    padding: 10px;
    display: flex;
    box-sizing:border-box;
    left: 0;
}

.input-bar input {
    flex: 1;
    border: none;
    padding: 5px 10px;
    font-size: 16px;
}

.input-bar button {
    font-size: 16px;
}

ul, li {
    list-style: none;
    padding: 0;
    margin: 0;
}

.message-list {
    overflow: hidden;
}

.message-item {
    font-size: 20px;
    padding: 5px 10px;
    margin: 10px;
    color: #333;
    clear: both;
    border-radius: 3px 20px 0 10px;
}

.message-item.client {
    border: 1px solid rgb(163, 224, 163);
    background: rgb(204, 247, 204);
    float: right;
}

.message-item.server {
    border: 1px solid rgb(232, 165, 208);
    background: rgb(242, 203, 225);
    float: left;
}